Weather radar Surabaya
Real-time precipitation radar · Ost-Java · Indonesia
Surabaya climate table – average temperature, precipitation & sunshine hours
The climate table for Surabaya shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29.5° | 29.4° | 29.8° | 30.2° | 30.4° | 30.3° | 30.5° | 31.3° | 32.6° | 32.9° | 31.5° | 30.1° |
| Avg low (°C) | 24.8° | 24.7° | 24.9° | 25.1° | 25.1° | 24.5° | 23.8° | 23.8° | 24.3° | 25.2° | 25.5° | 25.1° |
| Precipitation (mm) | 278 | 273 | 269 | 181 | 102 | 56 | 20 | 8 | 19 | 68 | 174 | 268 |
| Rainy days | 29 | 27 | 29 | 24 | 15 | 9 | 4 | 2 | 3 | 11 | 23 | 28 |
| Sunshine hours | 275 | 258 | 300 | 301 | 321 | 317 | 334 | 340 | 329 | 342 | 306 | 276 |
| Humidity | – | – | – | – | – | – | – | – | – | – | – | – |
Best time to visit Surabaya
The best time to visit Surabaya is typically August. In this month the average high is 31.3°C, precipitation is 8 mm and sunshine duration is 340 hours. The annual average high is 30.7°C, total annual precipitation is 1716 mm (204 rainy days/year) and annual sunshine is 3699 hours.
Frequently asked questions about the weather in Surabaya
How up to date is the weather radar for Surabaya?
The weather radar for Surabaya is updated every 5 minutes with new radar data from the OPERA composite radar. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for Surabaya?
Besides the rain radar, RadarWeather provides for Surabaya: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in Surabaya?
The thunderstorm potential for Surabaya is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near Surabaya.
What is the climate like in Surabaya?
Surabaya has an annual average high of 30.7°C. The warmest month is October (avg high 32.9°C), the coldest July (avg low 23.8°C). The wettest month is January with 278 mm, the driest August with 8 mm. Total annual precipitation is 1716 mm (204 rainy days). Annual sunshine is 3699 hours.
Weather radar near Surabaya
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